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From "Hive QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-14451) Vectorization: Add byRef mode for borrowed Strings in VectorDeserializeRow
Date Thu, 01 Sep 2016 12:51:20 GMT

    [ https://issues.apache.org/jira/browse/HIVE-14451?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15455285#comment-15455285
] 

Hive QA commented on HIVE-14451:
--------------------------------



Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12826543/HIVE-14451.02.patch

{color:green}SUCCESS:{color} +1 due to 4 test(s) being added or modified.

{color:red}ERROR:{color} -1 due to 6 failed/errored test(s), 10436 tests executed
*Failed tests:*
{noformat}
TestBeeLineWithArgs - did not produce a TEST-*.xml file
TestHiveCli - did not produce a TEST-*.xml file
org.apache.hadoop.hive.cli.TestCliDriver.org.apache.hadoop.hive.cli.TestCliDriver
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver[vector_join_part_col_char]
org.apache.hadoop.hive.cli.TestMiniTezCliDriver.testCliDriver[explainuser_3]
org.apache.hive.jdbc.TestJdbcWithMiniHS2.testAddJarConstructorUnCaching
{noformat}

Test results: https://builds.apache.org/job/PreCommit-HIVE-MASTER-Build/1069/testReport
Console output: https://builds.apache.org/job/PreCommit-HIVE-MASTER-Build/1069/console
Test logs: http://ec2-204-236-174-241.us-west-1.compute.amazonaws.com/logs/PreCommit-HIVE-MASTER-Build-1069/

Messages:
{noformat}
Executing org.apache.hive.ptest.execution.TestCheckPhase
Executing org.apache.hive.ptest.execution.PrepPhase
Executing org.apache.hive.ptest.execution.ExecutionPhase
Executing org.apache.hive.ptest.execution.ReportingPhase
Tests exited with: TestsFailedException: 6 tests failed
{noformat}

This message is automatically generated.

ATTACHMENT ID: 12826543 - PreCommit-HIVE-MASTER-Build

> Vectorization: Add byRef mode for borrowed Strings in VectorDeserializeRow
> --------------------------------------------------------------------------
>
>                 Key: HIVE-14451
>                 URL: https://issues.apache.org/jira/browse/HIVE-14451
>             Project: Hive
>          Issue Type: Improvement
>          Components: Vectorization
>            Reporter: Gopal V
>            Assignee: Matt McCline
>         Attachments: HIVE-14451.01.patch, HIVE-14451.02.patch
>
>
> In a majority of cases, when using the OptimizedHashMap, the references to the byte[]
are immutable. 
> The hashmap result always allocates on boundary conditions, but never mutates a previous
buffer.
> Copying Strings out of the hashtable is entirely wasteful and it would be easy to know
when the currentBytes is a borrowed slice from the original input.



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